13977465 has 16 divisors (see below), whose sum is σ = 22413888. Its totient is φ = 7438016.

The previous prime is 13977463. The next prime is 13977487. The reversal of 13977465 is 56477931.

It is a cyclic number.

It is not a de Polignac number, because 13977465 - 2¹ = 13977463 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13977461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9082 + ... + 10508.

It is an arithmetic number, because the mean of its divisors is an integer number (1400868).

Almost surely, 2^13977465 is an apocalyptic number.

13977465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13977465 is a deficient number, since it is larger than the sum of its proper divisors (8436423).

13977465 is a wasteful number, since it uses less digits than its factorization.

13977465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2088.

The product of its digits is 158760, while the sum is 42.

The square root of 13977465 is about 3738.6448079485. The cubic root of 13977465 is about 240.8848413621.

The spelling of 13977465 in words is "thirteen million, nine hundred seventy-seven thousand, four hundred sixty-five".